N = New listing appearing on list for first time
R = Item returning to the list after having been off for 1 or more weeks

Commentary:

A huge surge by Avatar: The Last Airbender comics gives us a new number 1 on the chart as the three volumes of The Last Promise take up three slots in the top ten, including the top debut, part 3 (which doesn't come out until October).

Also debuting this week are Kick-Ass 2, the Kindle edition of the latest Big Nate strip collection, and the color hardcover of the first Scott Pilgrim volume.

Just releasing the title of the next Wimpy Kid book, which doesn't come out until November, gives it a surge into the second slot on the list. Unless something very unusual happens, look for this book to dominate the chart at the end of the year...

Earlier in the week, before the Avatar surge, Jeffrey Brown's Darth Vader and Son was momentarily in the #1 slot.

Dead Watch: There are twelve Walking Dead collections on the chart this week, which is up two from last week.

Bat Watch: There are seven Batman books on the chart this week, same as last (though Morrison's Arkham Asylum takes the place of Morrison's Batman, Inc.).